The size of a hole that renders an earthen vessel clean:If the vessel was made for food, the hole must be big enough for olives [to fall through]. If it was used for liquids it suffices for the hole to be big enough for liquids [to go through it]. And if it was used for both, we apply the greater stringency, that olives must be able to fall through.

A jar: the size of the hole must be such that a dried fig [will fall through], the words of Rabbi Shimon. Rabbi Judah said: walnuts. Rabbi Meir said: olives. A stew-pot or a cooking pot: such that olives [will fall through]. A bucket and a pitcher: such that oil [will fall through]. A tzartzur: such that water [will fall through]. Rabbi Shimon says: in the case of all three, [the hole] must be such that seedlings [will fall through]. A lamp: the size of the hole must be such that oil [will fall through]. Rabbi Eliezer says: such that a small perutah [will fall through]. A lamp whose nozzle has been removed is clean. And one made of earth whose nozzle has been burned by the wick is also clean.

A jar that had a hole and was mended with pitch and then was broken again: If the fragment that was mended with the pitch can hold a quarter of a log it is unclean, since the designation of a vessel has never ceased to be applied to it. A potsherd that had a hole and was mended with pitch, it is clean though it can contain a quarter of a log, because the designation of a vessel has ceased to be applied to it.

If a jar was about to be cracked but was strengthened with cattle dung, although the potsherds would fall apart were the dung to be removed, it is unclean, because the designation of vessel never ceased to apply. If it was broken and some of its pieces were stuck together again, or if he brought other pieces of clay from elsewhere, and it was also lined with cattle dung, even though the potsherds hold together when the dung is removed, it is clean, because the designation of vessel ceased to apply. If it contained one potsherd that could hold a quarter of a log, all its parts contract impurity by contact, but that potsherd contracts impurity through its air-space.

One who lines a sound vessel: Rabbi Meir and Rabbi Shimon say: [the lining] contracts impurity. But the sages say: a lining over a sound vessel is not susceptible to impurity, and only one over a cracked vessel is susceptible. And the same dispute applies to the hoop of a pumpkin shell.

As to dog's tooth which which they line large jars: anything that touches it becomes unclean. The plug of a jar is not regarded as connected. That which touches the lining of an oven is unclean.

A cauldron which was lined with mortar or with potter's clay: That which touches the mortar is unclean; But that which touches the potter's clay is clean. A kettle which was punctured and the hole was stopped with pitch: Rabbi Yose rules that it is clean since it cannot hold hot water as cold. The same ruling he also gave concerning vessels made of pitch. Copper vessels which were lined with pitch the lining is clean, But if they are used for wine, it is unclean.